Home / 20,785.39-31,182.69-5,993.16

Finding the Fourth Proportional to 20,785.39, 31,182.69 and 5,993.16

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Solution

The fourth proportional to 20,785.39, 31,182.69 and 5,993.16 is: 8,991.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785.39 : 31,182.69 = 5,993.16 : x
  2. Step 2: Convert to fraction form
    20,785.39/31,182.69 = 5,993.16/x
  3. Step 3: Cross multiply
    20,785.39x = 31,182.69 × 5,993.16
  4. Step 4: Simplify right side
    20,785.39x = 186,882,755.94
  5. Step 5: Solve for x
    x = 186,882,755.94/20,785.39
  6. Step 6: Final answer
    x = 8,991.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.